3 papers
math.GT2020
The Atiyah-Patodi-Singer rho invariant and signatures of links
Enrico Toffoli
Relations between the Atiyah-Patodi-Singer rho invariant and signatures of links have been known for a long time, but they were only partially investigated. In order to explore the…
math.GT2017
Multivariable signatures, genus bounds and -solvable cobordisms
Anthony Conway, Matthias Nagel, Enrico Toffoli
We refine prior bounds on how the multivariable signature and the nullity of a link change under link cobordisms. The formula generalizes a series of results about the 4-genus havi…
math.GT2016
The Blanchfield pairing of colored links
Anthony Conway, Stefan Friedl, Enrico Toffoli
It is well known that the Blanchfield pairing of a knot can be expressed using Seifert matrices. In this paper, we compute the Blanchfield pairing of a colored link with non-zero A…